General description These 4Pcs 8mm Shank Copy Cutters are designed for woodworking milling and DIY flush trim cutting. They are suitable for all types of cutting and engraving machines, making them ideal for finishing wood edges, edge trimming, 3D gap angles, and grooving. The router bits feature a ball bearing for precise cutting of wood edges. Technical specifications Shank diameter: 8mm Material: Ground tungsten steel Shank material: 45 gauge steel Total lengths: 58.4 mm, 71.1 mm, 85.7 mm, 96.5 mm Usage Flush trimming Cutting Grooving Finishing a wide range of materials including solid wood Other information Package includes: 4 pieces Router Bits Cannot be used on glass, metal, concrete, etc.